Well in one hour the train going east is going 40 mph. In 4 hours the train is 160miles because 40x4=160 so it's 160 miles away from the satiation, and train that's going west is going 50 mph. In 4 hours the train is 200 miles from the satiation. 50x4=200 if you add 160 and 200 you get the distance between both trains
Answer:
Original cost was $19.99
Step-by-step explanation:
100% - 15% = 85%
16.99 / 0.85 = 19.99
To check:
19.99 * 0.15 = 2.998
19.99 - 2.998 = 16.992 = 16.99
Correct!!
Answer:
y = -8/5
Step-by-step explanation:
Step 1: Write equation
5/8y = -1
Step 2: Solve for <em>y</em>
- Divide both sides by 5/8: y = -8/5
Step 3: Check
<em>Plug in y to verify it's a solution.</em>
- Substitute: 5/8(-8/5) = -1
- Multiply: -40/40 = -1
- Divide: -1 = -1
